维普中文期刊产品整合服务
11篇 您的检索式:作者名="Lin Shuntian"
    题名 作者 年代 出处 被引量
1Sintering parameters and weal performance of vitrified bond diamond grinding wheels显示文摘LIN Kuanhong PENG Shihfeng LIN Shuntian 2007International Journal of Refractory Metals and Hard Materials2007,25,1:1
2Epitaxial interface of nanoerystalline TiC formed between Cu - 10Sn - 15Ti alloy and diamond 显示文摘Li Wenchung Liang Cheng Lin Shuntian 2002Diamond and Related Materials2002,11,7:1
3Interfacial segregation of Ti in the brazing of diamond grits onto a steel substrate using a Cu-Sn-Ti brazing alloy 显示文摘Li Wenchung Cheng Liang Lin Shuntian 2002Metallurgical and Materials Transactions A2002,33,:1
4Effects of brazing route and brazing alloy on the interfacial structure between diamond and bonding matrix 显示文摘Shengfang Huang Hisenlung Tsai Shuntian Lin 2003Materials Chemistry and Physics2003,,11:1
5Diamond tool bits with iron alloys asthe binding matrices显示文摘HSIEH Y Z LIN Shuntian 2001Materials Chemistry and Physics2001,72,12:1
6Effects of brazing route and brazing alloy on the interfacial structure between diamond and bonding matrix 显示文摘Huang Shengfang Tsai Hsienlung Lin Shuntian 2004Materials Chemistry and Physics2004,,84:1
7Laser brazing of diamond grits using a Cu-15Ti-10Sn brazing alloy 显示文摘Huang Shengfang Tsai Hsienlung Lin Shuntian 2002Materials Transactions2002,43,10:1
8Epitaxial interface of nanocrystalline TiC formed between Cu-10Sn-15Ti alloy and diamond 显示文摘Li Wenchung Liang Cheng Lin Shuntian 2002Diamond and Related Materials2002,11,:1
9Sintering pa- rameters and wear performances of vitrified bond diamond grinding wheels 显示文摘Lin Kuanhong Peng Shihfeng Lin Shuntian 2007International Journal of Refractory Metals & Hard Materials2007,,25:1
10Ground-Based Hyperspectral Stereoscopic Remote Sensing Network: A Promising Strategy to Learn Coordinated Control of O_(3) and PM_(2.5) over China显示文摘With the coming of the“14th Five-Year Plan,”the coordinated control of particulate matter with an aerodynamic diameter no greater than 2.5 lm(PM_(2.5))and O_(3) has become a major issue of air pollution prevention and control in China.The stereoscopic monitoring of regional PM_(2.5) and O_(3) and their precursors is crucial to achieve coordinated control.However,current monitoring networks are currently inadequate for monitoring the vertical profiles of both PM_(2.5) and O_(3) simultaneously and support air quality control.The University of Science and Technology of China(USTC)has established a nationwide ground-based hyperspectral stereoscopic remote sensing network based on multi-axis differential optical absorption spectroscopy(MAX-DOAS)since 2015.This monitoring network provides a significant opportunity for the regional coordinated control of PM_(2.5) and O_(3) in China.One-year vertical profiles of aerosol,NO_(2) and HCHO monitored from four MAX-DOAS stations installed in four megacities(Beijing,Shanghai,Shenzhen,and Chongqing)were used to characterize their vertical distribution differences in four key regions,Jing–Jin–Ji(JJJ),Yangtze River Delta(YRD),Pearl River Delta(PRD),and Sichuan Basin(SB),respectively.The normalized and yearly averaged aerosol vertical profiles below 400 m in JJJ and PRD exhibit a box shape and a Gaussian shape,respectively,and both show exponential shapes in YRD and SB.The NO_(2) vertical profiles in four regions all exhibit exponential shapes because of vehicle emissions.The shape of the HCHO vertical profile in JJJ and PRD was Gaussian,whereas an exponential shape was shown in YRD and SB.Moreover,a regional transport event occurred at an altitude of 600–1000 m was monitored in the southwest–northeast pathway of the North China Plain(NCP)by five MAX-DOAS stations(Shijiazhuang(SJZ),Wangdu(WD),Nancheng(NC),Chinese Academy of Meteorological Sciences(CAMS),and University of Chinese Academy of Sciences(UCAS))belonging to the above network.The aerosol optical depths(AOD)in these five stations decreased in the order of SJZ>WD>NC>CAMS>UCAS.The short-distance regional transport of NO2 in the 700–900 m layer was monitored between WD and NC.As an important precursor of secondary aerosol,the peak of NO_(2) air mass in WD and NC all occurred 1 h earlier than that of aerosol.This was also observed for the short-distance regional transport of HCHO in the 700–900 m layer between NC and CAMS,which potentially affected the O_(3) concentration in Beijing.Finally,CAMS was selected as a typical site to determine the O_(3)–NO_(x)–volatile organic compounds(VOCs)sensitivities in vertical space.We found the production of O_(3) changed from predominantly VOCs-limited conditions to mainly mixed VOCs–NO_(x)-limited condition from the 0–100 m layer to the 200–300 m layer.In addition,the downward transport of O_(3) could contribute to the increase of ground surface O_(3) concentration.This ground-based hyperspectral stereoscopic remote sensing network provide a promising strategy to support management of PM_(2.5) and O_(3) and their precursors and conduct attribution of sources.Cheng Liu Chengzhi Xing Qihou Hu Qihua Li Haoran Liu Qianqian Hong Wei Tan Xiangguang Ji Hua Lin Chuan Lu Jinan Lin Hanyang Liu Shaocong Wei Jian Chen Kunpeng Yang Shuntian Wang Ting Liu Yujia Chen 2022Engineering2022,,12:0
11Vertical distributions of wintertime atmospheric nitrogenous compounds and the corresponding OH radicals production in Leshan, southwest China显示文摘Ground-based multi-axis differential optical absorption spectroscopy(MAX-DOAS)observations were operated from 02 to 21 December 2018 in Leshan,southwest China,to measure HONO,NO_(2) and aerosol extinction vertical distributions,and these were the first MAX-DOAS measurement results in Sichuan Basin.During the measurement period,characteristic ranges for surface concentration were found to be 0.26-4.58 km^(−1) and averaged at 0.93 km^(−1) for aerosol extinction,0.49 to 35.2 ppb and averaged at 4.57 ppb for NO_(2) and 0.03 to 7.38 ppb and averaged at 1.05 ppb for HONO.Moreover,vertical profiles of aerosol,NO_(2) and HONO were retrieved from MAX-DOAS measurements using the Heidelberg Profile(HEIPRO)algorithm.By analysing the vertical gradients of pollutants and meteorological information,we found that aerosol and HONO are strongly localised,while NO_(2) is mainly transmitted from the north direction(city center direction).Nitrogen oxides such as HONO and NO_(2) are important for the production of hydroxyl radical(OH)and oxidative capacity in the troposphere.In this study,the averaged value of OH production rate from HONO is about 0.63 ppb/hr and maximum value of ratio between OH production from HONO and from(HONO+O_(3))is>93%before12:00 in Leshan.In addition,combustion emission contributes to 26%for the source of HONO in Leshan,and we found that more NO_(2) being converted to HONO under the conditions with high aerosol extinction coefficient and high relative humidity is also a dominant factor for the secondary produce of HONO.Chengzhi Xing Cheng Liu Qihou Hu Qingyan Fu Shanshan Wang Hua Lin Yizhi Zhu Shuntian Wang Weiwei Wang Zeeshan Javed Xiangguang Ji Jianguo Liu 2021Journal of Environmental Sciences2021,33,7:0
返回顶部 每页显示:
共1页 首页 上一页 第1页 下一页 末页 /1 跳转

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1 渝公网安备 50019002500403号 违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费